Optimist: the cup is 1/2 full Pessimist: the cup is 1/2 empty EU regulator: WHEREAS the volume of liquid in the vessel may be said to be equivalent to 50% of the volume of the vessel itself; NOTWITHSTANDING the presence of gaseous nitrogen in the ratio of approximately two to one in the remainin…

Haven't you missed out a page or so of "Having regard to" first?

Arrogant bullshitting bastard: ‘Excuse me, Excuse me?! *THIS* is my glass?? Mine was bigger! AND IT WAS FULL!’ (a pity Terry Pratchett is no longer with us)

Optimist: the cup is 1/2 full Pessimist: the cup is 1/2 empty Landlords: I don't care if it is half full or half empty, you'll have to pay rent for the entire space.

What about when the cup is half full of piss ?